For example if there are 25 questions on a test and a student gets 22 of them correct then the test score percentage is 2225 100 88 percent. Multiply k percent by n total number of values in the data set. How to calculate average percentage.
For example if the range of scores in your sample begin at cell A1 and end at cell A20 the formula AVERAGE A1A20 returns the average of those numbers.
To calculate the z-score of a specific value x first you must calculate the mean of the sample by using the AVERAGE formula. Youll refer to this in the next steps as the position of a value in your data set first second third. And they tell us that the standard deviation is nine beats per minute. Calculation of Mean of Percentages.